Institutul De Cercetari Proiectari Pentru Petrol Si Gaze,Ro
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Priority to RO82117408ApriorityCriticalpatent/RO87935A2/fr
Publication of RO87935B1publicationCriticalpatent/RO87935B1/ro
Publication of RO87935A2publicationCriticalpatent/RO87935A2/fr
RO82117408A1982-03-121982-03-12Procede pour la realisation de la circulation du fluide de forage dans la zone du mur d'un trou en forage
RO87935A2
(fr)